The difference in price with the suunto d4i novo is very small. is it worth buying the d4f?

Buy the D4i unless you only ever plan on freediving. I pretty much never put on scuba anymore. They are exactly the same except D4f doesn't have scuba mode. They have the same depth rating etc. Also, if you change your own battery you void the warranty. I've done mine 3x with no issues but change and grease the o ring and be careful.

does the d4 do nitrox?

The product shown is the D4F which is freediving only and does not do scuba functions. The D4I does freediving and all the scuba functions including nitrox.

Is the band replaceable? If so, how much do the replacements cost?

Good afternoon The D4 straps are replaceable and cost $62.95 for the new strap. If you ever want a replacement strap contact us and we will place an advert on the Amazon site for the item. Thank you for the inquiry Kevin L Houseofscuba

Is there a way to put the watch into sleep mode?

Hello Gerhardi A.J. Thanks for your question, I wasn't able to find any information about a "sleep mode" specifically. However, you are able to take the computer out of dive mode. At which point it will simply display the time and date. Please let me know if I can help in any other way. Zach House of Scuba

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🌊 Dive Deeper, Stay Ahead – The Ultimate Freediving Companion

DIVE READY ALWAYS - Robust stainless steel casing ensures durability in the harshest underwater environments.
MASTER YOUR DIVE TIME - Advanced Apnea Timer with O2/CO2 tables keeps your breath-hold sessions optimized and safe.
POWER UP EFFORTLESSLY - USB charging means no more battery swaps—just plug in and dive again.
GLOBAL EXPLORERS CHOICE - International model designed for worldwide use with multi-language support and universal standards.
STAY CONNECTED UNDERWATER - Large 5-inch digital display offers crystal-clear visibility even in low light conditions.

The Suunto D4F Black Scuba Dive Computer is a sleek, durable dive watch featuring an innovative apnea timer with O2/CO2 tables, a large 5-inch digital display, and a stainless steel waterproof design. USB rechargeable and built for international use, it’s engineered for serious freedivers and snorkelers who demand precision and reliability underwater.

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TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Color	Black
Style	strap
Display size	5 Inches
Display type	digital
Height	3.5 inches
Item display length	5 inches
Item display width	3.6 inches
Shape	round
Material type	Stainless Steel
Features	USB, alarm, stop_watch
Sport	diving, snorkelling
Batteries included?	No
Brand	SUUNTO
Manufacturer	SUUNTO
Item model number	SS023198000
Product Dimensions	12.7 x 9.14 x 8.89 cm; 86 g
ASIN	B06XKVLDQ3

Suunto D4F Black Scuba Dive Computer

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